Put the minimum dep version in Google DNS setup.py (#5002)
Put the minimum dep version in Google DNS setup.py (#5002)


jsha/letsencrypt,letsencrypt/letsencrypt,lmcro/letsencrypt,letsencrypt/letsencrypt,jsha/letsencrypt,lmcro/letsencrypt,stweil/letsencrypt,stweil/letsencrypt